—Will any of your correspondents acquaint me with the name of the author of the following lines, written shortly after Dr. Franklin's attendance at the Privy Council in January, 1774, in allusion to Wedderburn's severe remarks upon him?—

"Sarcastic Sawney, full of spite and hate,

On modest Franklin poured his venal prate;

The calm philosopher without reply

Withdrew—and gave his country liberty."

The lines were repeated to me by the late Francis Maseres, Esq., Cursitor Baron of the Court of Exchequer.

W. S.

Richmond, Surrey.

Plenius and his Lyrichord.

—May I hope to ascertain, through the medium of your journal, where to look for information on the subject of the "lyrichord of Plenius," referred to in Rees' Encyclopædia, art. "Basse Fondamentale," as having been "tuned by weights instead of tension?" The point left in doubt by this, is whether a single weight was substituted for tension, or whether the different notes in the musical scale were produced by altering the weight according to the rules for that purpose.